Lightweight glass steel cooling tower support beam with honeycomb sandwich structure

Abstract

This utility model discloses a lightweight fiberglass cooling tower support beam with a honeycomb sandwich structure, including a hollow main beam plate. A honeycomb core layer is filled and fixed within the cavity of the hollow main beam plate. The honeycomb core layer is fixedly adhered to the inner top and bottom surfaces of the hollow main beam plate cavity using epoxy structural adhesive. Connecting discs are fixed at both ends of the hollow main beam plate, with the centers of both ends coinciding with the centers of the connecting discs. Several bolt holes are provided on the connecting discs. In this embodiment, a hollow main beam plate with a honeycomb core layer is used as the main body of the cooling tower support beam. The main beam plate and the honeycomb core layer together form a sandwich-like structure. The hollow main beam plate is made of fiberglass, maximizing the advantages of fiberglass's corrosion resistance, lightweight, and high strength. The honeycomb core layer within the cavity of the hollow main beam plate maintains its lightweight advantage while maximizing its bending stiffness, significantly enhancing its bending resistance.

Description

Technical Field

[0001] This utility model relates to the field of cooling tower support equipment, specifically a lightweight fiberglass cooling tower support beam with a honeycomb sandwich structure. Background Technology

[0002] Traditional carbon steel cooling tower support beams commonly suffer from electrochemical corrosion in the high humidity and salt spray environment of cooling towers, requiring replacement on average every 3-5 years. Maintenance costs account for more than 30% of the total life-cycle cost of the cooling tower. Their significant weight necessitates the use of large hoisting equipment for installation, severely impacting construction efficiency. Currently, the market is searching for new materials that can effectively replace traditional carbon steel, with fiberglass being the preferred choice.

[0003] Fiberglass, scientifically known as fiber-reinforced plastic, commonly called FRP (Fiber Reinforced Plastics), is a type of fiber-reinforced composite plastic. It generally refers to reinforced plastics using glass fibers to strengthen unsaturated polyester, epoxy resin, and phenolic resin matrices, with glass fibers or their products as the reinforcing material. This is different from tempered glass. Due to the different types of resins used, there are polyester fiberglass, epoxy fiberglass, and phenolic fiberglass. It is lightweight yet hard, non-conductive, has stable properties, high mechanical strength, low recyclability, and is corrosion-resistant. It can replace steel in the manufacture of machine parts and the outer shells of automobiles and ships.

[0004] While fiberglass possesses the aforementioned advantages, compared to traditional carbon steel, it lacks sufficient bending stiffness. This makes it unable to maintain its initial shape under strong winds or other potentially severe external forces, compromising the safety of its support for cooling towers. Simply increasing the thickness of the fiberglass support beams also increases its weight, negating the lightweight advantage compared to traditional materials. Furthermore, the resulting cost increase is significant. Therefore, there is an urgent need for a fiberglass cooling tower support beam that possesses sufficient bending stiffness and lightweight advantages. Utility Model Content

[0005] The purpose of this invention is to provide a lightweight fiberglass cooling tower support beam with a honeycomb sandwich structure to solve the problems mentioned in the background art.

[0006] To solve the above-mentioned technical problems, this utility model provides the following technical solution:

[0007] A lightweight fiberglass cooling tower support beam with a honeycomb sandwich structure includes a hollow main beam plate, the inner cavity of which is filled and fixed with a honeycomb core layer, and connecting plates are fixed at both ends of the hollow main beam plate, with several bolt holes on the connecting plates.

[0008] In a further embodiment, the cell density of the honeycomb core layer at the end of the hollow main beam slab is greater than the cell density of the honeycomb core layer in the middle of the hollow main beam slab.

[0009] In a further embodiment, the honeycomb core layer is fixedly bonded to the inner top and bottom surfaces of the hollow main beam slab using epoxy structural adhesive.

[0010] In a further embodiment, a rubber layer is fixed around the inner wall of the bolt hole.

[0011] In a further embodiment, the centers at both ends of the hollow main beam plate coincide with the center of the connecting plate.

[0012] Preferably, the honeycomb core layer is made of aluminum.

[0013] Compared with the prior art, the beneficial effects of this utility model are:

[0014] In this utility model, a hollow main beam plate wrapped with a honeycomb core layer is used as the main body of the cooling tower support beam. The main beam plate and the honeycomb core layer together form a sandwich-like structure. The hollow main beam plate is made of fiberglass, which maximizes the advantages of fiberglass in corrosion resistance, lightness and high strength. The honeycomb core layer in the cavity of the hollow main beam plate can maximize its bending stiffness while maintaining the lightweight advantage of the hollow main beam plate, thus greatly enhancing its bending resistance.

[0015] In this invention, the cell density of the honeycomb core layer near the connection points at both ends of the main beam plate is greater than that of the honeycomb core layer in the middle of the hollow main beam plate, which effectively reduces weight while ensuring the connection strength at both ends of the main beam plate.

[0016] In this invention, a rubber layer is fixed in the inner wall of the bolt hole on the connecting plate. When connecting, the rubber layer is kept in close contact with the non-threaded part of the bolt. On the one hand, this enhances the tightness of the connection, and on the other hand, the softness of the rubber can also reduce the transmission of vibration. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the overall structure of this utility model;

[0018] Figure 2 for Figure 1 Enlarged view of the structure at point A;

[0019] Figure 3 This is a schematic diagram showing the distribution of the honeycomb core layer in the inner cavity of the hollow main beam slab.

[0020] In the diagram: 1. Hollow main beam slab; 2. Honeycomb core layer; 3. Connecting plate; 4. Bolt hole; 5. Rubber layer. Detailed Implementation

[0021] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0022] Implementation, for example Figure 1-3 As shown, this embodiment provides a lightweight fiberglass cooling tower support beam with a honeycomb sandwich structure, including a hollow main beam plate 1. A honeycomb core layer 2 is filled and fixed within the cavity of the hollow main beam plate 1. The honeycomb core layer 2 is fixedly adhered to the inner top and bottom surfaces of the hollow main beam plate 1 using epoxy structural adhesive. Connecting discs 3 are fixed to both ends of the hollow main beam plate 1, with the centers of both ends of the hollow main beam plate 1 coinciding with the centers of the connecting discs 3. Several bolt holes 4 are provided on the connecting discs 3. In this embodiment, the hollow main beam plate 1, wrapped with the honeycomb core layer 2, serves as the main body of the cooling tower support beam. The main beam plate and the honeycomb core layer 2 together form a sandwich-like structure. The hollow main beam plate 1 is made of fiberglass, maximizing the advantages of fiberglass's corrosion resistance, lightweight, and high strength. The honeycomb core layer 2 within the cavity of the hollow main beam plate 1 can maximize its bending stiffness while maintaining its lightweight advantage, significantly enhancing its bending resistance.

[0023] In this embodiment, the cell density of the honeycomb core layer 2 located at the end of the hollow main beam slab 1 is greater than that of the honeycomb core layer 2 in the middle of the hollow main beam slab 1. Furthermore, the cell density of the honeycomb core layer 2 near the connection points at both ends of the main beam slab is greater than that in the middle of the hollow main beam slab 1, effectively ensuring the connection strength at both ends of the main beam slab while reducing weight.

[0024] In this embodiment, a rubber layer 5 is fixed around the inner wall of the bolt hole 4. During connection, the rubber layer 5 is kept in close contact with the non-threaded part of the bolt, which enhances the tightness of the connection and the flexibility of the rubber can also reduce vibration transmission.

[0025] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A lightweight fiberglass cooling tower support beam with a honeycomb sandwich structure, characterized in that: It includes a hollow main beam plate (1), the inner cavity of which is filled with a honeycomb core layer (2), and both ends of the hollow main beam plate (1) are fixed with connecting discs (3), and the connecting discs (3) are provided with several bolt holes (4).

2. The lightweight fiberglass cooling tower support beam with a honeycomb sandwich structure according to claim 1, characterized in that: The cell density of the honeycomb core layer (2) located at the end of the hollow main beam slab (1) is greater than that of the honeycomb core layer (2) in the middle of the hollow main beam slab (1).

3. The lightweight fiberglass cooling tower support beam with a honeycomb sandwich structure according to claim 1, characterized in that: The honeycomb core layer (2) is fixedly bonded to the inner top and bottom surfaces of the hollow main beam plate (1) using epoxy structural adhesive.

4. The lightweight fiberglass cooling tower support beam with a honeycomb sandwich structure according to claim 1, characterized in that: A rubber layer (5) is fixed around the inner wall of the bolt hole (4).

5. The lightweight fiberglass cooling tower support beam with a honeycomb sandwich structure according to claim 1, characterized in that: The centers at both ends of the hollow main beam plate (1) coincide with the center of the connecting plate (3).

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